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<?php |
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namespace wapmorgan\UnifiedArchive\Formats; |
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use Exception; |
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use wapmorgan\UnifiedArchive\ArchiveEntry; |
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use wapmorgan\UnifiedArchive\ArchiveInformation; |
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use wapmorgan\UnifiedArchive\PclzipZipInterface; |
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use ZipArchive; |
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/** |
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* Class Zip |
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* |
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* @package wapmorgan\UnifiedArchive\Formats |
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* @requires ext-zip |
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*/ |
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class Zip extends BasicFormat |
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{ |
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/** @var ZipArchive */ |
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protected $zip; |
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/** |
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* BasicFormat constructor. |
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* |
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* @param string $archiveFileName |
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* @throws \Exception |
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*/ |
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public function __construct($archiveFileName) |
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{ |
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$this->open($archiveFileName); |
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} |
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/** |
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* @param $archiveFileName |
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* |
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* @throws \Exception |
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*/ |
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protected function open($archiveFileName) |
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{ |
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$this->zip = new ZipArchive(); |
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$open_result = $this->zip->open($archiveFileName); |
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if ($open_result !== true) { |
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throw new Exception('Could not open Zip archive: '.$open_result); |
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} |
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} |
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/** |
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* Zip format destructor |
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*/ |
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public function __destruct() |
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{ |
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unset($this->zip); |
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} |
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/** |
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* @return ArchiveInformation |
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*/ |
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public function getArchiveInformation() |
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{ |
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$information = new ArchiveInformation(); |
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for ($i = 0; $i < $this->zip->numFiles; $i++) { |
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$file = $this->zip->statIndex($i); |
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// skip directories |
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if (in_array(substr($file['name'], -1), ['/', '\\'], true)) |
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continue; |
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$information->files[$i] = $file['name']; |
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$information->compressedFilesSize += $file['comp_size']; |
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$information->uncompressedFilesSize += $file['size']; |
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} |
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return $information; |
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} |
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/** |
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* @return array |
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*/ |
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public function getFileNames() |
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{ |
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$files = []; |
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for ($i = 0; $i < $this->zip->numFiles; $i++) { |
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$file_name = $this->zip->getNameIndex($i); |
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// skip directories |
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if (in_array(substr($file_name, -1), ['/', '\\'], true)) |
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continue; |
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$files[] = $file_name; |
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} |
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return $files; |
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} |
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/** |
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* @param string $fileName |
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* |
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* @return bool |
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*/ |
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public function isFileExists($fileName) |
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{ |
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return $this->zip->statName($fileName) !== false; |
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} |
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/** |
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* @param string $fileName |
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* |
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* @return ArchiveEntry |
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*/ |
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public function getFileData($fileName) |
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{ |
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$stat = $this->zip->statName($fileName); |
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return new ArchiveEntry($fileName, $stat['comp_size'], $stat['size'], $stat['mtime'], |
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$stat['comp_method'] != 0); |
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} |
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/** |
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* @param string $fileName |
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* |
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* @return string|false |
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* @throws \Exception |
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*/ |
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public function getFileContent($fileName) |
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{ |
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$result = $this->zip->getFromName($fileName); |
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if ($result === false) |
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throw new Exception('Could not get file information: '.$result); |
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return $result; |
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} |
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/** |
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* @param string $fileName |
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* |
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* @return bool|resource|string |
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*/ |
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public function getFileResource($fileName) |
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{ |
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return $this->zip->getStream($fileName); |
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} |
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/** |
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* @param string $outputFolder |
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* @param array $files |
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* @return false|resource |
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* @throws \Exception |
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*/ |
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public function extractFiles($outputFolder, array $files) |
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{ |
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if ($this->zip->extractTo($outputFolder, $files) === false) |
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throw new Exception($this->zip->getStatusString(), $this->zip->status); |
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return count($files); |
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} |
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/** |
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* @param string $outputFolder |
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* @throws \Exception |
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*/ |
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public function extractArchive($outputFolder) |
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{ |
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if ($this->zip->extractTo($outputFolder) === false) |
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throw new Exception($this->zip->getStatusString(), $this->zip->status); |
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return $this->zip->numFiles; |
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} |
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/** |
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* @param array $files |
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* |
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* @return int |
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* @throws \Exception |
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*/ |
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public function deleteFiles(array $files) |
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{ |
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$count = 0; |
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foreach ($files as $file) { |
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if ($this->zip->deleteName($file) === false) |
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throw new Exception($this->zip->getStatusString(), $this->zip->status); |
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$count++; |
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} |
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// reopen archive to save changes |
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$archive_filename = $this->zip->filename; |
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$this->zip->close(); |
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$this->open($archive_filename); |
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return $count; |
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} |
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/** |
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* @param array $files |
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* |
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* @return int |
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* @throws \Exception |
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*/ |
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public function addFiles(array $files) |
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{ |
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$added_files = 0; |
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foreach ($files as $localName => $fileName) { |
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if (is_null($fileName)) { |
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if ($this->zip->addEmptyDir($localName) === false) |
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throw new Exception($this->zip->getStatusString(), $this->zip->status); |
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} else { |
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if ($this->zip->addFile($fileName, $localName) === false) |
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throw new Exception($this->zip->getStatusString(), $this->zip->status); |
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$added_files++; |
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} |
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} |
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// reopen archive to save changes |
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$archive_filename = $this->zip->filename; |
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$this->zip->close(); |
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$this->open($archive_filename); |
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return $added_files; |
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} |
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/** |
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* @param array $files |
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* @param string $archiveFileName |
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* |
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* @return false|int |
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* @throws \Exception |
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*/ |
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public static function createArchive(array $files, $archiveFileName){ |
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$zip = new ZipArchive(); |
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$result = $zip->open($archiveFileName, ZipArchive::CREATE); |
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if ($result !== true) |
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throw new Exception('ZipArchive error: '.$result); |
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foreach ($files as $localName => $fileName) { |
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if ($fileName === null) { |
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if ($zip->addEmptyDir($localName) === false) |
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return false; |
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} else { |
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if ($zip->addFile($fileName, $localName) === false) |
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return false; |
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} |
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} |
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$zip->close(); |
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return count($files); |
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} |
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/** |
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* @return \wapmorgan\UnifiedArchive\PclzipZipInterface |
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*/ |
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public function getPclZip() |
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{ |
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return new PclzipZipInterface($this->zip); |
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} |
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/** |
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* @return bool |
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*/ |
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public static function canAddFiles() |
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{ |
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return true; |
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} |
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/** |
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* @return bool |
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*/ |
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public static function canDeleteFiles() |
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{ |
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return true; |
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} |
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} |